此草深秋有，开紫花，子如椒核，处处原隰皆有。叶如苎麻叶而气臭，故名鸡虱。必效
方云
治风毒流火，取一握煎酒吃，或入酒煮一炷香，去渣服，俱效。
百草镜云∶此草立夏后发苗，叶似何首乌微狭，对生，茎与叶俱微有白毛，不似首乌茎
叶之
光泽，根类白薇，白色极多，故名。入药用根。 王安采药录∶老君须生溪涧边，起藤二三
尺，梗青，根须白黄色，有数十条，能消痞。 按王三才医便云∶老君须春夏秋冬常有，青
出众草为尊，茎藤青，叶似 叶而尖小，根如须，白似芋头根，牵藤而去，俗名社公口须，
亦治肿毒。采根擂生酒服，渣敷患处。
味辛性热，破瘀，毛氏 方用之，治瘰 。
治痞结∶医便∶痞结年久成龟鳖者，累用极效。用老君须一味，春夏用茎叶，秋冬用根，
不
拘多少，用好生酒一罐，外用鲫鱼一双，和药同入罐内，日落时煮，以鱼熟为度。令患人先
食鱼，次饮酒，再以药渣扑痞结所至。次早去之，大小便见物下即效。如不应，连服三五次
，追其物无迹，而神效难言。
余晓园云∶治风痹，消血瘕面黄痞块。
汪连仕云∶老君须根细如白薇，理气消肿，通利关格，败毒消痈，俱以酒煎服。
王安采药方∶金钗草根名老君须，合龙虎丹用，治三十六种风症瘫痪鹤膝等风。
这种草在深秋时节出现，开紫色的花，种子像花椒核一样，各地的低湿之地都有生长。叶子像苎麻叶但气味难闻，所以名叫鸡虱。《必效方》记载：治疗风毒流火，取一把煎酒后服用，或者放入酒中煮一炷香的时间，去渣服用，都有效。
《百草镜》记载：这种草在立夏后发芽，叶子像何首乌但稍窄，叶片对生，茎和叶上都微有白毛，不像何首乌的茎叶那样有光泽，根部类似白薇，白色很多，因此得名。入药使用根部。王安《采药录》记载：老君须生长在溪涧边，藤蔓长二三尺，梗为青色，根须呈白黄色，有数十条，能消除痞块。按王三才《医便》记载：老君须春夏秋冬四季常有，青翠出众被视为尊贵，茎藤青色，叶子形状似某种植物（原文缺字，推测为“桑”或类似）而尖小，根像胡须，白色像芋头根，牵拉藤蔓可去除，俗名社公口须，也能治疗肿毒。采集根部捣碎后用生酒送服，药渣敷在患处。
味道辛，性热，能破除瘀血，毛氏方剂中使用它，治疗瘰疬（颈部淋巴结结核）。
治疗痞结：《医便》记载：痞结日久形成龟鳖状硬块的，多次使用极有效。只用老君须一味药，春夏用茎叶，秋冬用根，数量不限，用好生酒一罐，外加鲫鱼一对，将药和鱼同放入罐内，日落时开始煮，以鱼煮熟为标准。让病人先吃鱼，再喝酒，然后用剩下的药渣扑打痞结部位。第二天早晨去掉药渣，如果大小便排出异物即见效。如果无效，连续服用三五次，直到排出异物无影无踪，其神效难以言表。
This herb appears in late autumn, bears purple flowers, and its seeds resemble Sichuan pepper kernels. It is found everywhere in low-lying and damp areas. The leaves resemble those of Boehmeria nivea (ramie) but have an unpleasant odor, hence the name "Chicken Louse Grass" (Ji Shi). *Bixiao Fang* states: To treat wind-toxicity and flowing fire, take a handful, decoct it in wine, and drink; or boil it in wine for the time it takes to burn one incense stick, strain, and take the liquid. Both methods are effective.
*Bai Cao Jing* states: This herb sprouts after Start of Summer. The leaves resemble those of Polygonum multiflorum (He Shou Wu) but are slightly narrower, growing oppositely. The stems and leaves have fine white hairs, unlike the glossy stems and leaves of P. multiflorum. The root resembles Salvia miltiorrhiza var. notata (Bai Wei), with much whiteness, hence the name. The root is used medicinally. Wang An's *Caipao Lu* states: Laojun Xu grows by streams and ravines, with vines two to three chi long, green stems, and dozens of white-yellowish rootlets. It can dissipate epigastric fullness masses (Pi). According to Wang Sancai's *Yi Bian*: Laojun Xu is present throughout spring, summer, autumn, and winter, standing out among other herbs for its verdant color, considered noble. The stems and vines are green, leaves are similar to [missing character] leaves but pointed and small, roots resemble whiskers, white like taro roots. Pulling the vine removes it. Commonly known as "Shegong's Mouth Whiskers," it also treats swelling and toxicity. Collect the root, pound it fresh, and take with raw wine; apply the dregs to the affected area.
It tastes pungent and is hot in nature. It breaks up blood stasis. Mao's formula uses it to treat scrofula (Lu Li).
To treat epigastric fullness masses (Pi Jie): *Yi Bian* states: For chronic cases where the mass becomes hard like a turtle or clam shell, repeated use is extremely effective. Use only Laojun Xu. In spring and summer, use stems and leaves; in autumn and winter, use roots. Quantity is unrestricted. Place them in a jar of good raw wine along with one crucian carp. Boil starting at sunset until the fish is cooked. Have the patient eat the fish first, then drink the wine, and subsequently apply the herbal dregs to the site of the mass. Remove the dregs the next morning. If matter is discharged via stool or urine, it is effective. If there is no response, continue taking it for three to five times until the matter is expelled without a trace. Its miraculous efficacy is beyond description.
Yu Xiaoyuan states: It treats wind-bi syndrome, dissipates blood accumulations (Xue Jia), sallow complexion, and epigastric masses.
Wang Lianshi states: The roots of Laojun Xu are thin like Bai Wei. It regulates qi, reduces swelling, unblocks Guan Ge (obstruction characterized by vomiting and inability to urinate), eliminates toxins, and resolves sores. All are decocted in wine for administration.
Wang An's *Caipao Fang* states: The root of Gold Hair Orchid (Anoectochilus roxburghii) is named Laojun Xu. When combined with Longhu Dan, it treats thirty-six types of wind syndromes, paralysis, and crab-knee wind (Gan Xi Feng).